Revert "remove anims and resize repaint (#451)"

This reverts commit 59f7144.

src/engine.rs

@@ -114,6 +114,9 @@ pub struct Reedline {
     hinter: Option<Box<dyn Hinter>>,
     hide_hints: bool,
 
+    // Is Some(n) read_line() should repaint prompt every `n` milliseconds
+    animate: bool,
+
     // Use ansi coloring or not
     use_ansi_coloring: bool,
 
@@ -168,6 +171,7 @@ impl Reedline {
             hinter,
             hide_hints: false,
             validator,
+            animate: false,
             use_ansi_coloring: true,
             menus: Vec::new(),
             buffer_editor: None,
@@ -250,6 +254,14 @@ impl Reedline {
         self
     }
 
+    /// A builder which enables or disables animations/automatic repainting of prompt.
+    /// If `repaint` is true, every second the prompt will be repainted and the clock updates
+    #[must_use]
+    pub fn with_animation(mut self, repaint: bool) -> Self {
+        self.animate = repaint;
+        self
+    }
+
     /// A builder that configures the highlighter for your instance of the Reedline engine
     /// # Example
     /// ```rust
@@ -504,6 +516,8 @@ impl Reedline {
                 if let Some(ec) = last_edit_commands {
                     reedline_events.push(ReedlineEvent::Edit(ec));
                 }
+            } else if self.animate && !self.painter.exceeds_screen_size() {
+                reedline_events.push(ReedlineEvent::Repaint);
             };
 
             for event in reedline_events.drain(..) {
@@ -596,7 +610,7 @@ impl Reedline {
             ReedlineEvent::Mouse => Ok(EventStatus::Handled),
             ReedlineEvent::Resize(width, height) => {
                 self.painter.handle_resize(width, height);
-                Ok(EventStatus::Inapplicable)
+                Ok(EventStatus::Handled)
             }
             ReedlineEvent::Repaint => {
                 // A handled Event causes a repaint
@@ -881,7 +895,7 @@ impl Reedline {
             ReedlineEvent::OpenEditor => self.open_editor().map(|_| EventStatus::Handled),
             ReedlineEvent::Resize(width, height) => {
                 self.painter.handle_resize(width, height);
-                Ok(EventStatus::Inapplicable)
+                Ok(EventStatus::Handled)
             }
             ReedlineEvent::Repaint => {
                 // A handled Event causes a repaint

src/painting/painter.rs

@@ -81,6 +81,13 @@ impl Painter {
         self.screen_height() - self.prompt_start_row
     }
 
+    /// Check if the currently painted content exceeds the size of the screen
+    /// and thus should not be repainted without reason (disable animation
+    /// repaint)
+    pub(crate) fn exceeds_screen_size(&self) -> bool {
+        self.large_buffer
+    }
+
     /// Sets the prompt origin position and screen size for a new line editor
     /// invocation
     ///